Under load, the blue stopper will be pressed onto the ferrule. Will this not making the control line at least difficult if not impossible to adjust? You understand what I mean?
I can see that...but, honestly, you are going to have a heck of time doing anything with that V-jam cleat with your weight pulling on it anyway. I usually have to pull my weight on the handle to do anything with the cleat...so that would free up the ferrule.